EP4062877B1 - Mâchoire d'extracteur tibial modulaire - Google Patents

Mâchoire d'extracteur tibial modulaire Download PDF

Info

Publication number
EP4062877B1
EP4062877B1 EP22167497.1A EP22167497A EP4062877B1 EP 4062877 B1 EP4062877 B1 EP 4062877B1 EP 22167497 A EP22167497 A EP 22167497A EP 4062877 B1 EP4062877 B1 EP 4062877B1
Authority
EP
European Patent Office
Prior art keywords
jaw
modular
elongated body
modular jaw
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22167497.1A
Other languages
German (de)
English (en)
Other versions
EP4062877C0 (fr
EP4062877A1 (fr
Inventor
Zachary Robert Sweitzer
Nicholas Christopher Keach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shukla Medical
Original Assignee
Shukla Medical
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US16/658,606 external-priority patent/US11331202B2/en
Application filed by Shukla Medical filed Critical Shukla Medical
Publication of EP4062877A1 publication Critical patent/EP4062877A1/fr
Application granted granted Critical
Publication of EP4062877C0 publication Critical patent/EP4062877C0/fr
Publication of EP4062877B1 publication Critical patent/EP4062877B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/461—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of knees
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/02—Jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • B25B7/123—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears with self-locking toggle levers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30383—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by laterally inserting a protrusion, e.g. a rib into a complementarily-shaped groove
    • A61F2002/30387—Dovetail connection
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30537—Special structural features of bone or joint prostheses not otherwise provided for adjustable
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4619—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof for extraction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2/4603—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2002/4622—Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof having the shape of a forceps or a clamp
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools for implanting artificial joints
    • A61F2002/4681—Special tools for implanting artificial joints by applying mechanical shocks, e.g. by hammering

Definitions

  • Exemplary embodiments of the subject disclosure relate generally to the field of medical device implant extraction tools. Specifically, the subject disclosure relates to an orthopedic implant extraction tool having a modular jaw.
  • Orthopedic implant extraction tools contain jaws to grasp an orthopedic implant. Frequently, these jaws can break upon continued use, often as a result of improper or unintended use of the tool. Accordingly, there remains a need for a modular jaw that can withstand the clamping and extraction forces placed upon the orthopedic implant extraction tool, but that can be used as a consumable part and replaced, as needed, without requiring replacement of the entire tool.
  • US 2011/0296963 A1 discloses pliers that includes a jaw member removably coupled to a head of the pliers.
  • the jaw member includes a grip surface and a flange including an aperture.
  • the pliers further include a fastener that extends into the aperture of the flange and an aperture of a longitudinal side of the head to removably couple the jaw member to the head.
  • the jaw member is slidable along the jaw surface of the head from the first longitudinal side toward the second longitudinal side to uncouple the jaw member from the head when the fastener is uncoupled from at least one of the jaw member and the head.
  • the modular jaw is provided for attachment to an orthopedic implant extraction tool.
  • the modular jaw includes an elongated body, a claw about a distal end of the elongated body for engaging an object, a locking mechanism about a posterior end of the elongated body for engaging the orthopedic implant extraction tool, and a distally facing surface about a proximal end of the elongated body.
  • the locking mechanism includes a dovetail lock and a detent mounted to the dovetail lock.
  • the locking mechanism extends from about a midportion of the elongated body.
  • the dovetail lock can be a tapered dovetail lock and the detent can be a ball detent.
  • the modular jaw includes a posteriorly extending tapered tenon (e.g., a curved posteriorly extending tapered tenon) about the proximal end of the elongated body.
  • the elongated body can include a first planar posterior end and a second planar posterior end offset from the first planar posterior end, and the claw can be in the form of a posteriorly extending tapered lip.
  • An orthopedic implant extraction tool may include a handle, a gripping handle pivotably connected to the handle, and the instantly described modular jaw connectable to the handle.
  • the orthopedic implant extraction tool further includes a movable jaw connected to the gripping handle, and a shaft connectable to the handle for locking the modular jaw in position.
  • the handle includes a cooperating locking mechanism engageable with the locking mechanism of the modular jaw, such as a corresponding dovetail lock about an anterior face of the handle for engaging the dovetail lock of the modular jaw.
  • the shaft has an overall diameter that overlaps with, and engages, a proximal end of the modular jaw when connected to the handle.
  • an orthopedic implant extraction tool that includes a handle, a gripping handle pivotably connected to the handle, and a modular stationary jaw connectable to the handle.
  • the modular stationary jaw includes a body, a claw about a distal end of the body, and a locking mechanism for engaging the gripping handle.
  • the locking mechanism includes a dovetail lock, a detent, and a distally facing surface about a posterior end of the body.
  • the orthopedic implant extraction tool further includes a movable jaw connected to the gripping handle, and a shaft connectable to the handle for locking the modular stationary jaw in position.
  • the handle includes a cooperating locking mechanism engageable with the locking mechanism of the modular stationary jaw.
  • the handle can include a corresponding dovetail lock about an anterior face of the handle for engaging the dovetail lock of the modular stationary jaw.
  • the handle can further include a fastener about a posteriorly facing end of the handle.
  • the shaft has an overall diameter that overlaps with a proximal end of the modular stationary jaw when connected to the handle. In certain embodiments, the shaft directly engages the modular stationary jaw when connected to the handle.
  • range format is merely for convenience and brevity and should not be construed as an inflexible limitation on the scope of the subject disclosure. Accordingly, the description of a range should be considered to have specifically disclosed all the possible subranges as well as individual numerical values within that range. For example, description of a range such as from 1 to 6 should be considered to have specifically disclosed subranges such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6 etc., as well as individual numbers within that range, for example, 1, 2, 2.7, 3, 4, 5, 5.3, and 6. This applies regardless of the breadth of the range.
  • FIG. 1-7 illustrate a modular jaw 100 for attachment to an orthopedic implant extraction tool, such as, for example, the orthopedic implant extraction tool 800 shown in FIG. 8 .
  • the modular jaw 100 includes an elongated body 101, a claw 102 about a distal end 103 of the elongated body, and a locking mechanism 104 about a posterior end 105 of the elongated body for engaging the orthopedic implant extraction tool.
  • the modular jaw further includes a distally facing surface 106 about a proximal end 107 of the elongated body.
  • the distal end 103 includes the claw 102 that is configured, e.g., as a lip for engaging an object such as an orthopedic implant, such as a tibial orthopedic implant (tibial tray) used in knee replacement surgery.
  • the lip 108 can, in certain exemplary embodiments, be in the form of a sharp edge to penetrate the interface of the orthopedic implant and bone, which can include implant-bone cement or an implant-bone boundary. As shown in FIG. 1 , the lip 108 is a posteriorly extending tapered lip that is slightly tapered inward from the furthest distal reach of the distal end 103.
  • the lip 108 defines a posterior end of the claw 102 that terminates about a first planar posterior end 116.
  • a longer lip can be provided that extends to or before a second planar posterior end 117 that is offset from the first planar posterior end 116.
  • the elongated body 101 proceeds from the distal end 103 with a width that is the same, or substantially similar to, the width of the lip 108.
  • the edges along the posterior end 105 of this section are provided in this exemplary embodiment with relived edges 109.
  • the elongated body 101 then flares outwardly at flares 110 toward the proximal end to provide a second, larger width at along a midportion 111 of the elongated body, this second, larger width continuing for the remainder of the elongated body, as best shown in FIG. 6 .
  • Posterior flares 122 similarly extend outward to provide the second, larger width, but also extend posteriorly to provide an increased width, as best shown in FIG. 2 .
  • the posterior flares 122 terminates about the plane defined by the first planar posterior end 116.
  • the second, larger width can be 1.5, 2, 2.5 or 3 times the width of the lip 108, though other dimensioning could be provided.
  • a locking mechanism 104 is provided about the posterior end 105 of the elongated body.
  • the locking mechanism extends from the midportion 111 of the elongated body 101.
  • the locking mechanism includes a dovetail lock 113, which tapers to provide an increasing width as one proceeds posteriorly (from left to right as oriented in FIG. 1 ), reaching a maximum at a posterior dovetail lock plane 115.
  • the dovetail lock 113 is provided with a pair of faces, distal face 114 and proximal face 223 that are generally trapezoidal shaped.
  • the dovetail lock 113 includes the posterior dovetail lock plane 115 that is generally parallel to the first planar posterior end 116 from which the dovetail lock 113 originates. As best shown in FIG. 4 , the dovetail lock plane 115 is along the same plane as second planar posterior end 117 and has a width substantially equal to the width of the lip 108. As will be discussed in connection with FIG. 10 below, the locking mechanism 104 is shaped to engage with a corresponding locking mechanism 1021 that can be located on an anterior face 1041 of a handle to the orthopedic implant extraction tool.
  • Detent 118 is mounted on the posterior dovetail lock plane 115 of the dovetail lock 113.
  • the detent 118 is a ball detent that is provided with a ball biased outwardly by a compression spring (not shown).
  • the detent 118 is mounted about a central portion of the dovetail lock, where it can engage components of the corresponding locking mechanism 1021, particularly, a ball detent track 1019 and a ball detent seat 1020 located on the anterior face 1041 of the handle 828, as best shown in FIG. 10 and discussed below.
  • Detent 118 serves to hold the modular jaw 100 in place during assembly, as discussed below.
  • the dovetail lock 113 terminates to form the proximal face 223 of the dovetail lock.
  • a posteriorly extending stop 124 is located axially with respect to the distal face 114 and the proximal face 223 of the dovetail lock.
  • the stop 124 forms a face that is dimensioned to engage a complementarily shaped surface of the orthopedic implant extraction tool, such as, for example, stop surfaces 1025 shown in FIG. 10 .
  • the stop 124 when engaged with the stop surface 1025, prevents further movement of the modular jaw 100 in the distal direction when the modular jaw is assembled onto the orthopedic implant extraction tool, and also positions the detent 118 over the detent seat 1020 of the orthopedic implant extraction tool.
  • the posteriorly extending stop 124 provides the offset between the first planar posterior end 116 and the second planar posterior end 117.
  • the first planar posterior end 116 is parallel to, or substantially parallel to, the second planar posterior end 117, with the stop 124 oriented perpendicular to both the first planar posterior end and the second planar posterior end.
  • the proximal end 107 of the elongated body 101 tapers along the portion of the jaw defined by the second planar posterior end 117.
  • the second planar posterior end 117 meets the distally facing surface 106 that is also provided about the elongated body 101.
  • the proximal end 107 continues to taper along the portion defined by the distally facing surface 106 to define a posteriorly extending tapered tenon 127 about the proximal end 107 of the elongated body (and about the posterior end 105).
  • the distally facing surface 106 is provided at an end of the posteriorly extending tapered tenon 127, as best shown in FIG. 1 . This distally facing surface 106 is provided about the proximal end 107 and the posterior end 105 of the elongated body 101.
  • Tool 800 includes a handle 828 that is connectable to the modular jaw 100, and a gripping handle 829 coupled to the handle 828 via a locking link 830.
  • the gripping handle 829 is pivotably connected to the handle 828 via movable jaw 831, which in turn is provided with a second claw, e.g., in the form of a lip 832 that, like lip 108 of the modular jaw 100, is sized and shaped to grasp an orthopedic implant such as, for example, a tibial implant tray used in knee replacement surgery.
  • a shaft 833 is connected to the handle 828 via fastener 934 located about a posteriorly facing end 937 of the handle.
  • the shaft 833 can be, for example, a shaft to an extractor extension, such as a connecting rod or an extraction rod.
  • the fastener 934 is a threaded bore.
  • the shaft 833 can include a threading 1251 about a distal end of the shaft with threads shaped to engage with the threads 1035 of the threaded bore.
  • the shaft 833 can further include a head 836, or the head 836 can be provided by a nut included as part of the shaft 833.
  • the head 836 and/or shaft 833 defines an overall diameter of the shaft in the particular embodiment disclosed in FIG. 8 .
  • the head 836 is optional, and not present in certain embodiments, in which case the shaft defines the overall diameter.
  • the shaft 833 can be provided with a larger diameter as it exits handle 828, as compared to the diameter of the shaft at the threading 1251 that internally engages the fastener 934 (e.g., a threaded bore).
  • the shaft 833 can include, for example, a flare 1250 that provides a progressively larger diameter proceeding from the threading 1251 to the head 836 of the shaft.
  • a beveled nut could be employed to provide the overall diameter of the shaft 833.
  • Other configurations can be employed so that the shaft provides an overall diameter that overlaps with a proximal end of the modular stationary jaw when connected to the handle 828.
  • the fastener 934 is provided with beveled edges 1138 to accommodate and seat the larger diameter of the shaft (e.g. at the flare 1250).
  • the shaft 833 is connected to the handle 828 via the fastener 934, a part of the shaft directly contacts the proximal end of the modular jaw 100.
  • the handle 828 includes a corresponding locking mechanism 1021 which corresponds to the locking mechanism 104.
  • the locking mechanism 124 is a male locking mechanism and the corresponding locking mechanism 1021 is a female locking system.
  • the corresponding locking mechanism 1021 of the handle 828 includes, in this particular embodiment, a corresponding dovetail lock 1039 provided about the anterior face 1041 of the handle.
  • the corresponding dovetail lock 1039 contains a passageway 1040 shaped to receive the distal face 114 of the dovetail lock 113.
  • the width of the passageway 1040 decreases as one proceeds anteriorly (from bottom to top as oriented in FIG. 10 ) to correspond to the increasing width of the dovetail lock 113.
  • This dovetail engagement provides a secure engagement of the modular jaw 100 in response to a clamping force.
  • the anterior face 1041 further includes a ball detent track 1019 and a ball detent seat 1020.
  • the ball detent track 1019 is axially aligned with the ball detent seat 1020, both of which being axially aligned with stop 124, and are each sized to receive the ball to the detent 118.
  • the ball detent track 1019 serves to allow the modular jaw to be easily slid into the handle 828.
  • a sloped face 1049 is provided proximal to the anterior face 1041 and provides a proximally faced surface, as shown in FIG. 10 . Sloped face 1049 is shaped complementary to the distally facing surface 106 to directly engage the distally facing surface 106 when the modular jaw is secured onto the handle.
  • Orthopedic implant extraction tool 800 can include other standard components, such as those components disclosed in the orthopedic implant extraction tools disclosed in U.S. Patent No. 10,085,852 .
  • the locking link 830 has one end mounted for rotation about pin 842 in the gripping handle 829 with the other end 945 mounted within a longitudinal groove 946 that is located within the handle 829.
  • a lock 843, secured within the gripping handle 829, can be manually manipulated such that it contacts the locking link 830 to prevent the lips 108 and 832 from closing past the adjusted opening provided by a thumb screw 844.
  • Thumb screw 844 is connected to a shaft 947 that engages end 945 of the locking link 830 and serves to adjustably limit the range of movement of the locking link 830, which in turn serves to limit the extent to which the lips 108 and 832 can be closed.
  • a locking pin 848 is provided that is connected to a sliding rod (not shown) such that, when the locking pin 848 is depressed, moves the sliding rod to engage the locking link 830 to prevent movement of the locking link and lock the handles in their current position.
  • the distal face 114 of the dovetail lock 113 of the modular jaw 100 is slid into the passageway 1040 of the corresponding dovetail lock 1039. This engagement is aided placing the ball from detent 118 into the ball detent track 1019.
  • the stop 124 of the modular jaw engages the stop surface 1025, the ball to the detent is seated in ball detent seat 1020 and the modular jaw 100 is fully engaged with the handle 828.
  • a compression spring biases the ball against ball detent seat 1020.
  • shaft 833 is engaged with fastener 934 by screwing the shaft 833 into the fastener 934 via threading 1251.
  • the fastener 934 is a threaded bore. Doing so causes the shaft 833 to directly contact and engage the proximal end 107 of the modular jaw, which in turn renders the tool 800 ready for use. More particularly, direct contact of the shaft with the proximal end 107 of the modular jaw secures distally facing surface 106 against the sloped face 1049 of the handle to lock the modular jaw into place so that the modular jaw is secure under all ranges of motion.
  • the shaft 833 is removed from the handle 828, and then the modular jaw can be slid out from the handle in the opposite direction from which it was engaged.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Transplantation (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Biomedical Technology (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Claims (10)

  1. Mâchoire modulaire (100) destinée à être fixée à un outil d'extraction d'implant orthopédique (800), la mâchoire modulaire comprenant :
    un corps allongé (101) ;
    une griffe (102) définissant une extrémité distale (103) du corps allongé pour venir en prise avec un objet ;
    un mécanisme de verrouillage (104) autour d'une extrémité postérieure (105) du corps allongé pour venir en prise avec l'outil d'extraction d'implant orthopédique, le mécanisme de verrouillage comprenant :
    un élément de verrouillage en queue d'aronde (113), et
    un cran (118) monté sur l'élément de verrouillage en queue d'aronde ; et
    une surface (106) orientée de manière distale autour d'une extrémité proximale (107) du corps allongé.
  2. Mâchoire modulaire selon la revendication 1, dans laquelle le mécanisme de verrouillage (104) s'étend à partir d'environ une partie médiane longitudinale (111) du corps allongé (101) .
  3. Mâchoire modulaire selon la revendication 1 ou la revendication 2, dans laquelle l'élément de verrouillage en queue d'aronde (113) est un élément de verrouillage en queue d'aronde effilé.
  4. Mâchoire modulaire selon l'une quelconque des revendications 1 à 3, dans laquelle le cran (118) est un cran à bille.
  5. Mâchoire modulaire selon l'une quelconque des revendications 1 à 4, comprenant en outre un tenon (127) effilé s'étendant vers l'arrière autour de l'extrémité proximale du corps allongé.
  6. Mâchoire modulaire selon la revendication 5, dans laquelle le tenon (127) effilé s'étendant vers l'arrière est incurvé.
  7. Mâchoire modulaire selon l'une quelconque des revendications 1 à 6, dans laquelle le corps allongé (101) comprend une première extrémité postérieure plane (116) et une seconde extrémité postérieure plane (117) décalée par rapport à la première extrémité postérieure plane.
  8. Mâchoire modulaire selon la revendication 7, dans laquelle la griffe (102) comprend une extrémité postérieure qui se termine autour d'un plan défini par l'une parmi la première ou la seconde extrémité postérieure plane.
  9. Mâchoire modulaire selon l'une quelconque des revendications 1 à 8, dans laquelle la griffe (102) est une lèvre (108) effilée s'étendant vers l'arrière.
  10. Mâchoire modulaire selon l'une quelconque des revendications 1 à 9, dans laquelle la surface (106) orientée de manière distale s'étend vers l'arrière à partir d'un côté postérieur de l'extrémité postérieure.
EP22167497.1A 2019-10-21 2020-10-21 Mâchoire d'extracteur tibial modulaire Active EP4062877B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/658,606 US11331202B2 (en) 2019-08-29 2019-10-21 Modular jaw and orthopedic implant extraction tool
EP20203140.7A EP3811906B1 (fr) 2019-10-21 2020-10-21 Modulares extraktionswerkzeug für orthopädische implantate

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP20203140.7A Division EP3811906B1 (fr) 2019-10-21 2020-10-21 Modulares extraktionswerkzeug für orthopädische implantate

Publications (3)

Publication Number Publication Date
EP4062877A1 EP4062877A1 (fr) 2022-09-28
EP4062877C0 EP4062877C0 (fr) 2024-03-20
EP4062877B1 true EP4062877B1 (fr) 2024-03-20

Family

ID=73005463

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20203140.7A Active EP3811906B1 (fr) 2019-10-21 2020-10-21 Modulares extraktionswerkzeug für orthopädische implantate
EP22167497.1A Active EP4062877B1 (fr) 2019-10-21 2020-10-21 Mâchoire d'extracteur tibial modulaire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20203140.7A Active EP3811906B1 (fr) 2019-10-21 2020-10-21 Modulares extraktionswerkzeug für orthopädische implantate

Country Status (1)

Country Link
EP (2) EP3811906B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114712042B (zh) * 2022-06-10 2022-10-14 北京爱康宜诚医疗器材有限公司 锁夹取出器
CN118285972B (zh) * 2024-06-06 2024-08-30 北京爱康宜诚医疗器材有限公司 股骨髁假体取出装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7867237B2 (en) * 2005-10-31 2011-01-11 Depuy Spine, Inc. Arthroplasty revision device and method
WO2011088087A2 (fr) * 2010-01-12 2011-07-21 Milwaukee Electric Tool Corporation Pinces à mâchoires amovibles
US9241809B2 (en) * 2010-12-21 2016-01-26 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US10085852B2 (en) * 2015-03-20 2018-10-02 Shukla Medical Locking grip orthopedic implant extraction tool

Also Published As

Publication number Publication date
EP3811906A1 (fr) 2021-04-28
EP4062877C0 (fr) 2024-03-20
EP3811906B1 (fr) 2022-05-04
EP4062877A1 (fr) 2022-09-28

Similar Documents

Publication Publication Date Title
US11399961B2 (en) Implant extractor tool
US11779468B2 (en) Implant extractor
US9615941B2 (en) Orthopedic tool for altering the connection between orthopedic components
EP4062877B1 (fr) Mâchoire d'extracteur tibial modulaire
US11839553B2 (en) Locking grip orthopedic implant extraction tool
KR101824619B1 (ko) 히프 내부 보철물용 히프 소켓 내로 소켓 삽입물을 삽입하기 위한 삽입 기구
MXPA03010956A (es) Palanca para alinear heso.
EP3328290B1 (fr) Outil pour le prélèvement d'une bille acétabulaire d'une cupule acétabulaire dans une prothèse de remplacement de la hanche
EP4112014A1 (fr) Extracteur d'implant
US12048441B2 (en) Orthopedic broach
US20240307193A1 (en) Implant extractor
US7377933B2 (en) Surgical instrument
US11331202B2 (en) Modular jaw and orthopedic implant extraction tool
US11364039B2 (en) Tool holder for modular tool
US9603719B2 (en) Surgical extraction device
US20230120086A1 (en) Surgical extractor
US20240238026A1 (en) Orthopedic slide hammer instrument
EP3909533B1 (fr) Extracteur de clou intramédullaire

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AC Divisional application: reference to earlier application

Ref document number: 3811906

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20230328

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20231020

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AC Divisional application: reference to earlier application

Ref document number: 3811906

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602020027728

Country of ref document: DE

U01 Request for unitary effect filed

Effective date: 20240327

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240408

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240620

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240620

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240620

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240720

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

U20 Renewal fee for the european patent with unitary effect paid

Year of fee payment: 5

Effective date: 20241028

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602020027728

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20241223

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20241021

U20 Renewal fee for the european patent with unitary effect paid

Year of fee payment: 6

Effective date: 20251027

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20251027

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20201021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20201021